US10618542B2 - Foldable stroller frame and foldable stroller - Google Patents

Foldable stroller frame and foldable stroller Download PDF

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Publication number
US10618542B2
US10618542B2 US15/684,324 US201715684324A US10618542B2 US 10618542 B2 US10618542 B2 US 10618542B2 US 201715684324 A US201715684324 A US 201715684324A US 10618542 B2 US10618542 B2 US 10618542B2
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United States
Prior art keywords
rotatably connected
wheel bracket
link
handrail
bar
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Active, expires
Application number
US15/684,324
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English (en)
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US20180154919A1 (en
Inventor
Shoujin Cai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Little Dinosaur Children's Products Group Co Ltd
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Jiangsu Little Dinosaur Children's Products Group Co Ltd
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Assigned to JIANGSU LITTLE DINOSAUR CHILDREN'S PRODUCTS GROUP CO., LTD. reassignment JIANGSU LITTLE DINOSAUR CHILDREN'S PRODUCTS GROUP CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CAI, Shoujin
Publication of US20180154919A1 publication Critical patent/US20180154919A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
    • B62B7/083—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis the wheel axes being moved from each other during folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
    • B62B7/086—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis becoming smaller in all three dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/10—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable by folding down the body to the wheel carriage or by retracting projecting parts into the box-shaped body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/02—Hand-propelled vehicles or sledges being foldable or dismountable when not in use foldable widthwise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/04—Hand-propelled vehicles or sledges being foldable or dismountable when not in use box-shaped in folded position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/06—Foldable with a scissor-like mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/30—Detachable, retractable or collapsible load supporting means
    • B62B2205/32—Shelves

Definitions

  • the present disclosure relates to the technical field of strollers and, more particularly, to a foldable stroller frame and a foldable stroller.
  • Strollers are a tool commonly found in daily life, such as a stroller for shopping, a stroller suitable for lying and sitting of babies, or the like.
  • a baby stroller for example, is generally configured to be foldable. Space occupied by the stroller is reduced by folding of the stroller.
  • a foldable stroller frame includes a front wheel bracket and a rear wheel bracket rotatably connected to the front wheel bracket.
  • An upper end of the rear wheel bracket is rotatably connected to a side handrail, and a rear end thereof is rotatably connected to a rear supporting bar.
  • the side handrail and the rear supporting bar are rotatably connected to a push bar ( 4 ) from different shafts.
  • the rear wheel bracket is provided with a slidable sleeve to which a front wheel bracket link and a side handrail link are rotatable connected, respectively.
  • An end of the front wheel bracket link that is not connected to the slidable sleeve is rotatably connected to the front wheel bracket, and an end of the side handrail link that is not connected to the slidable sleeve is rotatably connected to the side handrail.
  • the present disclosure further provides a foldable stroller comprising the foldable stroller frame described above.
  • the foldable stroller frame of the present disclosure can be folded more conveniently and quickly, and has a small volume and is convenient to carry and store after being folded, thus bring great convenience for the user. Furthermore, with the above configuration, it is possible to make the whole structure of stroller more stable as the stroller is unfolded.
  • FIG. 1 is a perspective structural schematic view illustrating a foldable stroller frame according to a first embodiment.
  • FIG. 2 is a side view illustrating the foldable stroller frame according to the first embodiment.
  • FIG. 3 is a schematic view illustrating a state of the foldable stroller frame according to the first embodiment with the upper half thereof being concealed.
  • FIG. 4 is a schematic view illustrating another state of the foldable stroller frame according to the first embodiment with the upper half thereof being concealed.
  • FIG. 5 is a schematic view illustrating a half-folded state of the foldable stroller frame according to the first embodiment.
  • FIG. 6 is a side view illustrating a half-folded state of the foldable stroller frame according to the first embodiment.
  • FIG. 7 is a schematic view illustrating a full-folded state of the foldable stroller frame according to the first embodiment.
  • FIG. 8 is a perspective structural schematic view illustrating a foldable stroller frame according to a second embodiment.
  • FIG. 9 is a side view illustrating the foldable stroller frame according to the second embodiment.
  • FIG. 10 is a schematic view illustrating a half-folded state of the foldable stroller frame according to the second embodiment.
  • FIG. 11 is a side view illustrating a half-folded state of the foldable stroller frame according to the second embodiment.
  • FIG. 12 is a schematic view illustrating a full-folded state of the foldable stroller frame according to the second embodiment.
  • the present embodiment provides a foldable stroller frame, and in the present embodiment, the directions such as “front”, “rear”, “left”, “right”, “upper” and “lower” as involved herein shall be illustrated as the direction toward which the user faces as he/she pushes the stroller.
  • the front means the direction toward which the user faces directly as he/she pushes the stroller, based on this, each of the directions will be illustrated.
  • the foldable stroller frame includes a front wheel bracket 1 , a rear wheel bracket 2 , a side handrail 3 , a push bar 4 , a rear supporting bar 5 , a front wheel bracket link 6 , a side handrail link 7 , a slidable sleeve 8 , a front wheel assembly 11 and a rear wheel assembly 12 .
  • the front wheel assembly 11 is mounted on the front wheel bracket 1
  • the rear wheel assembly 12 is mounted on the rear wheel bracket 2 .
  • the front wheel bracket 1 is rotatably connected to the rear wheel bracket 2 by means of a pin 27 .
  • the rear wheel bracket 2 includes a left rear wheel bracket 2 a and a right rear wheel bracket 2 b that are rotatably connected to two sides of the front wheel bracket 1 by means of the pin 27 , respectively.
  • An upper end of the rear wheel bracket 2 is rotatably connected to the side handrail 3 by means of a pin 29 , and a rear end thereof is rotatably connected to the rear supporting bar 5 by means of a pin 33 .
  • the side handrail 3 is rotatably connected to the push bar 4 by means of a pin 30
  • the push bar 4 is also connected with a front hood bar 19 .
  • the side handrails 3 , the push bar 4 and the front hood bar 19 are rotatably connected to one another by the pin 30 in a coaxial manner, and the push bar 4 and the rear supporting bar 5 are rotatably connected to each other by means of a pin 32 .
  • a lower end of the push bar 4 is rotatably connected to the rear supporting bar 5 by means of the pin 32 .
  • the rear wheel bracket 2 is provided with a slidable sleeve 8 which is rotatably connected to a front wheel bracket link 6 by a pin 36 and which is rotatably connected to a side handrail link 7 by a pin 35 .
  • One end of the front wheel bracket link 6 that is not connected to the slidable sleeve 8 is rotatably connected to the front wheel bracket 1 by means of a pin 28
  • one end of the side handrail link 7 that is not connected to the slidable sleeve 8 is rotatably connected to the side handrail 3 by a pin 31 .
  • the slidable sleeve 8 may includes a slidable sleeve 8 a and a slidable sleeve 8 b in the present embodiment.
  • the foldable baby stroller may further include left and right rear supporting bars 23 , 22 which are rotatably connected to each other and intersect at their middle portion by a pin 49 .
  • One end of the left rear supporting bar 23 is rotatably connected to a left front supporting bar 25 by a pin 44 , and the other end thereof is rotatably connected to a right front wheel bracket link 6 b of the front wheel bracket link 6 by means of a pin 48 .
  • One end of the right rear supporting bar 22 is rotatably connected to a right front supporting bar 24 by a pin 45 , and the other end thereof is rotatably connected to a left front wheel bracket link 6 a of the front wheel bracket link 6 by means of a pin 47 .
  • An end of the left front supporting bar 25 that is not connected to the left rear supporting bar 23 is rotatably connected to an end of the left front wheel bracket link 6 a that is not connected to the right rear supporting bar 22
  • an end of the right front supporting bar 24 that is not connected to the right rear supporting bar 22 is rotatably connected to an end of the right front wheel bracket link 6 b that is not connected the left rear supporting bar 23 by a pin 46 .
  • the foldable baby stroller as described above may further include upper and lower cross supporting bars 20 , 21 which are rotatably connected to each other and intersect at their middle portion by a pin 42 .
  • an end of the upper cross supporting bar 20 is rotatably connected to a right rear wheel bracket 2 b of the rear wheel bracket 2 by means of a pin 40 b , and the other end thereof is rotatably connected to a left U-shaped member 26 a by a pin 41 a .
  • the left U-shaped member 26 a is rotatably connected to the left front wheel bracket link 6 a by a pin 36 , and a rotation center of the left U-shaped member 26 a is coaxial with that of the left front wheel bracket link 6 a and the slidable sleeve 8 .
  • One end of the lower cross supporting bar 21 is rotatably connected to the left rear wheel bracket 2 a of the rear wheel bracket 2 by a pin 40 a , and the other end thereof is rotatably connected to a right U-shaped member 26 b by a pin 41 b .
  • the right U-shaped member 26 b is rotatably connected to the right front wheel bracket link 6 b by another pin 36 , and a rotation center of the right U-shaped member 26 b is coaxial with that of the right front wheel bracket link 6 b and the slidable sleeve 8 .
  • the foldable baby stroller described above may further include a front handrail.
  • the front handrail may include a front handrail middle rod 16 , and two front handrail links, which include left and right front handrail link 15 a , 15 b , arranged symmetrically and rotatably connected to two ends of the front handrail middle rod 16 .
  • An end of each front handrail link that is not connected to the front handrail middle rod 16 is rotatably connected to a front handrail plug that may include a left front handrail plug 14 a connected to the left front handrail link 15 a and a right front handrail plug 14 b connected to the right front handrail link 15 b .
  • left and right push handles 17 a , 17 b are rotatably connected to upper ends of the push bars 4 at two sides by means of pins 38 a , 38 b , respectively.
  • the left push handle 17 a and the right push handle 17 b are rotatably connected to each other by a pin 39 .
  • a locking member is disposed between the left push handle 17 a and the right push handle 17 b and is used to lock and unlock the left push handle 17 a and the right push handle 17 b .
  • the locking member in the present embodiment may be an unlock button 18 .
  • a locking mechanism for locking the whole stroller frame is further arranged between the side handrail 3 and the push bar 4 .
  • the locking member unlocks the left and right push handles 17 a , 17 b and presses against the push bar 4 downwardly and forwardly, the locking mechanism can automatically release the locking of the whole stroller frame, thereby completing the folding of the whole stroller frame.
  • the foldable baby stroller described above may further be provided with a seat bar 9 rotatably connected to the front wheel bracket link 6 by a pin 34 .
  • An end of the seat bar 9 that is not connected to the front wheel bracket link 6 is rotatably connected to a seat bar link 10 by a pin 50
  • an end of the seat bar link 10 that is not connected to the seat bar 9 is rotatably connected to the rear wheel bracket 2 by a pin 33 .
  • a rotation center of the seat bar link 10 is coaxial with that of the rear supporting bar 5 and the rear wheel bracket 2 .
  • a backrest bar 13 may be rotatably connected to the seat bar 9 by means of a pin 37 .
  • the locking relation between the left push handle 17 a and the right push handle 17 b may be released by the locking member. Subsequently, the left push handle 17 a and the right push handle 17 b may be pressed downwardly and forwardly such that the locking mechanism between the side handrail 3 and the push bar 4 is automatically unlocked. Next, the push bar 4 may be pressed downward continually, and at this time the state of the foldable stroller frame is shown as in FIGS. 5 and 6 .
  • the whole stroller frame may be further folded forwardly and downwardly.
  • the full folding of the whole foldable stroller frame may be achieved by the interaction relation among the components described above, and the full-folded state is shown as in FIG. 7 .
  • a foldable stroller including the foldable stroller frame as described above may be further provided by the present disclosure.
  • the stroller frame With the configuration of the foldable stroller frame as described above, the stroller frame can be folded more conveniently and quickly, and has a small volume and is convenient to carry and store after being folded, thus bring great convenience for the user. Furthermore, with the above configuration, it is possible to make the whole structure of stroller more stable as the stroller is unfolded.
  • the present embodiment differs from the first embodiment in that the seat bar 9 of the present embodiment is not rotatably connected to the front wheel bracket link 6 , and as shown in FIGS. 8-12 , the seat bar 9 is slidably provided within the seat bar slidable sleeve 51 .
  • the seat bar slidable sleeve 51 is rotatably connected to the side handrail 3 by a pin 52
  • an end of the seat bar 9 may be rotatably connected to the side handrail link 7 by a pin 53
  • an upper end of the side handrail link 7 is rotatably connected to a front handrail socket 55 .
  • a connecting member is arranged on the side handrail and is rotatably connected to the front handrail socket 55 , and a rotation center of the front handrail socket 55 is coaxial with a rotation center of the front handrail link 7 and the side handrail 3 .
  • the rotational connection among the front handrail socket 55 , a front handrail link 7 and the side handrail 3 may be achieved by a pin 54 , and then the front handrail may be inserted into the front handrail socket 55 by the front handrail plug.
  • the locking relation between the left push handle 17 a and the right push handle 17 b may be released by the locking member. Subsequently, the left push handle 17 a and the right push handle 17 b may be pressed downwardly and forwardly such that the locking mechanism between the side handrail 3 and the push bar 4 is automatically unlocked. Next, the push bar 4 may be pressed downward continually, and at this time the state of the foldable stroller frame may be illustrated as in FIGS. 10 and 11 .
  • the whole stroller frame may be further folded forwardly and downwardly.
  • the full folding of the whole foldable stroller frame may be achieved by the interaction relation among the components described above, and the full-folded state is shown as in FIG. 12 .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
US15/684,324 2016-12-06 2017-08-23 Foldable stroller frame and foldable stroller Active 2037-10-08 US10618542B2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN201611111214.1A CN106515833A (zh) 2016-12-06 2016-12-06 一种幼儿推车折叠车架
CN201611111214.1 2016-12-06
CN201611111214 2016-12-06
CN201710174861.5A CN106915376B (zh) 2016-12-06 2017-03-22 一种可折叠推车车架及可折叠推车
CN201710174861 2017-03-22
CN201710174861.5 2017-03-22

Publications (2)

Publication Number Publication Date
US20180154919A1 US20180154919A1 (en) 2018-06-07
US10618542B2 true US10618542B2 (en) 2020-04-14

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Application Number Title Priority Date Filing Date
US15/684,324 Active 2037-10-08 US10618542B2 (en) 2016-12-06 2017-08-23 Foldable stroller frame and foldable stroller

Country Status (6)

Country Link
US (1) US10618542B2 (de)
EP (1) EP3552923B1 (de)
CN (3) CN106515833A (de)
ES (1) ES2934792T3 (de)
PL (1) PL3552923T3 (de)
WO (1) WO2018103377A1 (de)

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US20190351929A1 (en) * 2018-05-21 2019-11-21 Wonderland Switzerland Ag Stroller
US20230024504A1 (en) * 2020-01-22 2023-01-26 Jacob Morrise Foldable baby stroller

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CN106515833A (zh) * 2016-12-06 2017-03-22 江苏小小恐龙儿童用品集团有限公司 一种幼儿推车折叠车架
CN107264600A (zh) * 2017-06-01 2017-10-20 好孩子儿童用品有限公司 一种儿童推车
CN107444457B (zh) * 2017-09-04 2023-09-26 昆山威凯儿童用品有限公司 可折叠的婴儿推车
CN107757693B (zh) * 2017-11-23 2024-04-02 安徽呵宝儿童用品有限公司 一种能实现四折的婴儿推车车架
CN108032899A (zh) * 2018-01-10 2018-05-15 柯全德 一种婴儿车
CN207875741U (zh) * 2018-01-15 2018-09-18 罗瑞运动用品（昆山）有限公司 一种推车
CN207790810U (zh) * 2018-01-15 2018-08-31 罗瑞运动用品（昆山）有限公司 一种可折叠婴儿推车
CN108438037B (zh) * 2018-05-15 2023-10-17 昆山威凯儿童用品有限公司 一种婴儿推车及其靠背连动机构
CN108839703B (zh) * 2018-07-03 2024-01-19 好孩子儿童用品有限公司 折叠儿童推车
CN109109958A (zh) * 2018-09-14 2019-01-01 中山市永达儿童用品有限公司 一种可折叠童车
CN109334750A (zh) * 2018-11-14 2019-02-15 祝临川 可折叠儿童推车
CN112623012A (zh) * 2019-10-09 2021-04-09 阿蒙有限公司 可折叠的婴儿车
CN110758536A (zh) * 2019-12-05 2020-02-07 江苏小小恐龙儿童用品集团有限公司 一种可折叠推车车架
CN112224271B (zh) * 2020-09-29 2024-09-13 跃石(上海)婴童用品有限公司 一种新型的三合一推车结构
CN112896282B (zh) * 2021-03-15 2022-08-30 东莞恒耀日用制品有限公司 一种婴儿车

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ES2934792T3 (es) 2023-02-27
EP3552923B1 (de) 2022-10-05
CN106915376A (zh) 2017-07-04
PL3552923T3 (pl) 2023-02-27
CN106915376B (zh) 2019-05-21
WO2018103377A1 (zh) 2018-06-14
EP3552923A4 (de) 2020-08-12
CN106515833A (zh) 2017-03-22
US20180154919A1 (en) 2018-06-07
CN206734377U (zh) 2017-12-12

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